1a4a2bc460
Pull low-level x86 updates from Ingo Molnar: "In this cycle this topic tree has become one of those 'super topics' that accumulated a lot of changes: - Add CONFIG_VMAP_STACK=y support to the core kernel and enable it on x86 - preceded by an array of changes. v4.8 saw preparatory changes in this area already - this is the rest of the work. Includes the thread stack caching performance optimization. (Andy Lutomirski) - switch_to() cleanups and all around enhancements. (Brian Gerst) - A large number of dumpstack infrastructure enhancements and an unwinder abstraction. The secret long term plan is safe(r) live patching plus maybe another attempt at debuginfo based unwinding - but all these current bits are standalone enhancements in a frame pointer based debug environment as well. (Josh Poimboeuf) - More __ro_after_init and const annotations. (Kees Cook) - Enable KASLR for the vmemmap memory region. (Thomas Garnier)" [ The virtually mapped stack changes are pretty fundamental, and not x86-specific per se, even if they are only used on x86 right now. ] * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) x86/asm: Get rid of __read_cr4_safe() thread_info: Use unsigned long for flags x86/alternatives: Add stack frame dependency to alternative_call_2() x86/dumpstack: Fix show_stack() task pointer regression x86/dumpstack: Remove dump_trace() and related callbacks x86/dumpstack: Convert show_trace_log_lvl() to use the new unwinder oprofile/x86: Convert x86_backtrace() to use the new unwinder x86/stacktrace: Convert save_stack_trace_*() to use the new unwinder perf/x86: Convert perf_callchain_kernel() to use the new unwinder x86/unwind: Add new unwind interface and implementations x86/dumpstack: Remove NULL task pointer convention fork: Optimize task creation by caching two thread stacks per CPU if CONFIG_VMAP_STACK=y sched/core: Free the stack early if CONFIG_THREAD_INFO_IN_TASK lib/syscall: Pin the task stack in collect_syscall() x86/process: Pin the target stack in get_wchan() x86/dumpstack: Pin the target stack when dumping it kthread: Pin the stack via try_get_task_stack()/put_task_stack() in to_live_kthread() function sched/core: Add try_get_task_stack() and put_task_stack() x86/entry/64: Fix a minor comment rebase error iommu/amd: Don't put completion-wait semaphore on stack ... |
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.gitignore | ||
arch_timer.c | ||
armksyms.c | ||
asm-offsets.c | ||
atags_compat.c | ||
atags_parse.c | ||
atags_proc.c | ||
atags.h | ||
bios32.c | ||
calls.S | ||
cpuidle.c | ||
crash_dump.c | ||
debug.S | ||
devtree.c | ||
dma-isa.c | ||
dma.c | ||
early_printk.c | ||
efi.c | ||
elf.c | ||
entry-armv.S | ||
entry-common.S | ||
entry-ftrace.S | ||
entry-header.S | ||
entry-v7m.S | ||
fiq.c | ||
fiqasm.S | ||
ftrace.c | ||
head-common.S | ||
head-nommu.S | ||
head.S | ||
hibernate.c | ||
hw_breakpoint.c | ||
hyp-stub.S | ||
insn.c | ||
io.c | ||
irq.c | ||
isa.c | ||
iwmmxt.S | ||
jump_label.c | ||
kgdb.c | ||
machine_kexec.c | ||
Makefile | ||
module-plts.c | ||
module.c | ||
module.lds | ||
opcodes.c | ||
paravirt.c | ||
patch.c | ||
perf_callchain.c | ||
perf_event_v6.c | ||
perf_event_v7.c | ||
perf_event_xscale.c | ||
perf_regs.c | ||
pj4-cp0.c | ||
process.c | ||
psci_smp.c | ||
ptrace.c | ||
reboot.c | ||
reboot.h | ||
relocate_kernel.S | ||
return_address.c | ||
setup.c | ||
signal.c | ||
sigreturn_codes.S | ||
sleep.S | ||
smccc-call.S | ||
smp_scu.c | ||
smp_tlb.c | ||
smp_twd.c | ||
smp.c | ||
stacktrace.c | ||
suspend.c | ||
swp_emulate.c | ||
sys_arm.c | ||
sys_oabi-compat.c | ||
tcm.c | ||
thumbee.c | ||
time.c | ||
topology.c | ||
traps.c | ||
unwind.c | ||
v7m.c | ||
vdso.c | ||
vmlinux-xip.lds.S | ||
vmlinux.lds.S | ||
xscale-cp0.c |